A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5925-00-030-4943
NSN 7035-00-500-7839
NSN 5935-01-198-7932
NSN 5930-01-434-7486
NSN 5920-01-473-7909
NSN 5998-01-167-3926
NSN 6110-00-374-4805
NSN 6110-01-100-9558
NSN 6685-01-256-6443
NSN 5990-01-025-7466
NSN 5965-00-452-0967
NSN 5975-00-525-2331